rename fields to improve understanding, adapting maintenance.py (intermediate)

games/library/ragel.md

@@ -4,10 +4,10 @@ _Compiles executable finite state machines from regular languages._
 
 - Home: http://www.colm.net/open-source/ragel/
 - Media: https://en.wikipedia.org/wiki/Ragel
-- Download: see home
+- Download: (see home)
 - State: mature
-- Code: git://git.colm.net/ragel.git
-- Language(s): C++
+- Code repository: git://git.colm.net/ragel.git
+- Code language: C++
 - Code license: MIT
 
 Required by [HarfBuzz](harfbuzz.md).